<template>
  <div>
    <el-breadcrumb separator-class="el-icon-arrow-right">
      <el-breadcrumb-item :to="{ path: '/home' }">首页</el-breadcrumb-item>
      <el-breadcrumb-item>用户管理</el-breadcrumb-item>
      <el-breadcrumb-item>用户列表</el-breadcrumb-item>
    </el-breadcrumb>

    <el-card>
      <el-row :gutter="20">
        <el-col :span="10">
          <el-input placeholder="请输入内容" v-model="queryinfo.query" clearable @clear="getUserList">
            <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
          </el-input>
        </el-col>
        <el-col :span="4">
          <el-button type="primary" @click="addDialogVisible=true">添加用户</el-button>
        </el-col>
      </el-row>
      <!-- 用户列表区 -->
      <el-table :data="userlist" border stripe>
        <el-table-column type="index"></el-table-column>
        <el-table-column label="日期" prop="username"></el-table-column>
        <el-table-column label="邮箱" prop="email"></el-table-column>
        <el-table-column label="电话" prop="mobile"></el-table-column>
        <el-table-column label="角色" prop="role_name"></el-table-column>
        <el-table-column label="状态">
          <template slot-scope="scope">
            <el-switch v-model="scope.row.mg_state" @change="userStatusChanged(scope.row)"></el-switch>
          </template>
        </el-table-column>
        <el-table-column label="操作" width="180px">
          <template slot-scope="scope">
            <!-- {{scope.row}} -->
            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserByid(scope.row.id)"></el-button>
            <el-tooltip class="item" effect="dark" content="分配角色" placement="top" :enterable="false">
              <el-button type="warning" icon="el-icon-setting" size="mini" @click="setRole(scope.row)"></el-button>
            </el-tooltip>
          </template>
        </el-table-column>
      </el-table>
      <!-- 分页 -->
      <el-pagination
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        :current-page="queryinfo.pagenum"
        :page-sizes="[2, 5, 10, 50, 100]"
        :page-size="queryinfo.pagesize"
        layout="total, sizes, prev, pager, next, jumper"
        :total="total"
      ></el-pagination>
      <!-- 添加用户对话框 -->
      <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="50%" @closed="addDialogClosed">
        <!-- 内容主体区 -->
        <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
          <el-form-item label="用户名" prop="username">
          <el-input v-model="addForm.username"></el-input>
          </el-form-item>
          <el-form-item label="密码" prop="password">
          <el-input v-model="addForm.password"></el-input>
          </el-form-item>
          <el-form-item label="邮箱" prop="email">
          <el-input v-model="addForm.email"></el-input>
          </el-form-item>
          <el-form-item label="电话" prop="mobile">
          <el-input v-model="addForm.mobile"></el-input>
          </el-form-item>
        </el-form>
        <!-- 底部区 -->
        <span slot="footer" class="dialog-footer">
          <el-button @click="addDialogVisible = false" >取 消</el-button>
          <el-button type="primary" @click="addUser">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 修改用户对话框 -->
      <el-dialog
        title="修改用户"
        :visible.sync="editDialogVisible"
        width="30%" @closed="editDialogClosed">
        <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="100px">
        <el-form-item label="用户名">
          <el-input v-model="editForm.username" disabled></el-input>
        </el-form-item>
        <el-form-item label="邮箱" prop="email">
          <el-input v-model="editForm.email"></el-input>
        </el-form-item>
        <el-form-item label="手机" prop="mobile">
          <el-input v-model="editForm.mobile"></el-input>
        </el-form-item>
        </el-form>
        <span slot="footer" class="dialog-footer">
          <el-button @click="editDialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="editUserInfo">确 定</el-button>
        </span>
      </el-dialog>
      <!-- 分配角色对话框 -->
      <el-dialog
        title="分配权限"
        :visible.sync="setRoledialogVisible"
        width="50%"
        @close="setRoledialogClosed">
        <div>
          <p>当前的用户名：{{userInfo.username}}</p>
          <p>当前的角色：{{userInfo.role_name}}</p>
          <p>分配新角色：
            <el-select v-model="selectedRoleId" placeholder="请选择">
              <el-option
                v-for="item in roleslist"
                :key="item.id"
                :label="item.roleName"
                :value="item.id">
              </el-option>
            </el-select>
          </p>
        </div>
        <span slot="footer" class="dialog-footer">
          <el-button @click="setRoledialogVisible = false">取 消</el-button>
          <el-button type="primary" @click="saveRoleInfo">确 定</el-button>
        </span>
      </el-dialog>
    </el-card>
  </div>
</template>

<script>
export default {
  data () {
    // 添加自定义的邮箱验证规则
    var checkEmail = (rule, value, callback) => {
      const regEmail = /^\w+@\w+(\.\w+)+$/
      if (regEmail.test(value)) {
        // 合法邮箱
        return callback()
      }
      callback(new Error('请输入合法邮箱'))
    }
    // 自定义手机号规则
    var checkMobile = (rule, value, callback) => {
      const regMobile = /^1[34578]\d{9}$/
      if (regMobile.test(value)) {
        return callback()
      }
      // 返回一个错误提示
      callback(new Error('请输入合法的手机号码'))
    }
    return {
      queryinfo: {
        query: '',
        pagenum: 1,
        pagesize: 2
      },
      userlist: [],
      total: 0,
      addDialogVisible: false,
      // 添加用户表单
      addForm: {
        username: '',
        password: '',
        email: '',
        mobile: ''
      },
      // 表单的验证规则
      addFormRules: {
        username: [{ required: true, message: '请输入用户名', trigger: 'blur' }, { min: 3, max: 10, message: '用户名的长度在3~10之间' }],
        password: [{ required: true, message: '请输入密码', trigger: 'blur' }, { min: 6, message: '密码的长度不少于6位' }],
        email: [{ required: true, message: '请输入邮箱' }, { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入手机' }, { validator: checkMobile, trigger: 'blur' }]
      },
      editDialogVisible: false,
      editForm: {},
      editFormRules: {
        email: [{ required: true, message: '请输入邮箱' }, { validator: checkEmail, trigger: 'blur' }],
        mobile: [{ required: true, message: '请输入手机' }, { validator: checkMobile, trigger: 'blur' }]
      },
      // 设置分配权限对话框显示与否
      setRoledialogVisible: false,
      // 需要展示的分配角色的用户信息
      userInfo: {},
      roleslist: [],
      selectedRoleId: ''
    }
  },
  created () {
    this.getUserList()
  },
  methods: {
    async getUserList () {
      const { data: ret } = await this.$http.get('users', {
        params: this.queryinfo
      })
      if (ret.meta.status !== 200) {
        return this.$message.error('获取用户列表失败')
      }
      this.userlist = ret.data.users
      this.total = ret.data.total
      // console.log(ret)
    },
    // 监听pagesize
    handleSizeChange (newsize) {
      // console.log(newsize)
      this.queryinfo.pagesize = newsize
      this.getUserList()
    },
    // 监听页码值改变
    handleCurrentChange (newpage) {
      // console.log(newpage)
      this.queryinfo.pagenum = newpage
      this.getUserList()
    },
    async userStatusChanged (userinfo) {
      const { data: res } = await this.$http.put(
        `users/${userinfo.id}/state/${userinfo.mg_state}`
      )
      if (res.meta.status !== 200) {
        userinfo.mg_state = !userinfo.mg_state
        return this.$message.error('用户状态操作失败')
      }
      // console.log(res)
      this.$message.success('更新用户状态成功')
    },
    addDialogClosed () {
      this.$refs.addFormRef.resetFields()
    },
    addUser () {
      this.$refs.addFormRef.validate(async valid => {
        // 表单提交前的预校验
        // console.log(valid)
        if (!valid) return
        // 添加用户的网络请求
        const { data: res } = await this.$http.post('users', this.addForm)
        if (res.meta.status !== 201) return this.$message.error('添加用户失败')
        this.$message.success('添加用户成功')
        // 关闭表单
        this.addDialogVisible = false
        // 刷新数据
        this.getUserList()
      })
    },
    async showEditDialog (userid) {
      // console.log(userid)
      const { data: res } = await this.$http.get('users/' + userid)
      if (res.meta.status !== 200) return this.$message.error('查询用户信息失败')
      this.editForm = res.data
      this.editDialogVisible = true
    },
    // 监听修改用户信息窗口关闭事件
    editDialogClosed () {
      this.$refs.editFormRef.resetFields()
    },
    // 修改用户信息并提交
    editUserInfo () {
      this.$refs.editFormRef.validate(async valid => {
        // 表单提交前的预校验
        // console.log(valid)
        if (!valid) return
        // 添加用户的网络请求
        const { data: res } = await this.$http.put('users/' + this.editForm.id, { email: this.editForm.email, mobile: this.editForm.mobile })
        console.log(res.meta.status)
        if (res.meta.status !== 200) return this.$message.error('修改用户信息失败')
        this.$message.success('修改用户信息成功')
        // 关闭表单
        this.editDialogVisible = false
        // 刷新数据
        this.getUserList()
      })
    },
    async removeUserByid (uid) {
      console.log(uid)
      const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
        confirmButtonText: '确定',
        cancelButtonText: '取消',
        type: 'warning'
      }).catch(err => err)
      // console.log(confirmResult)
      if (confirmResult !== 'confirm') { this.$message.info('已取消删除用户') }
      const { data: res } = await this.$http.delete('users/' + uid)
      if (res.meta.status !== 200) return this.$message.error('删除用户失败')
      this.$message.success('删除用户成功')
      this.getUserList()
    },
    // 展示分配角色对话框
    async setRole (userInfo) {
      this.userInfo = userInfo
      const { data: res } = await this.$http.get('roles')
      if (res.meta.status !== 200) return this.$message.error('分配角色失败')
      this.roleslist = res.data
      this.setRoledialogVisible = true
    },
    // 点击确定按钮分配角色
    async saveRoleInfo () {
      if (!this.selectedRoleId) return this.$message.error('请选择角色')
      const { data: res } = await this.$http.put(`users/${this.userInfo.id}/role`, { rid: this.selectedRoleId })
      if (res.meta.status !== 200) return this.$message.error('更新角色失败')
      this.$message.success('更新用户角色成功')
      this.getUserList()
      this.setRoledialogVisible = false
    },
    // 监听分配角色对话框关闭事件
    setRoledialogClosed () {
      this.userInfo = {}
      this.selectedRoleId = ''
    }
  }
}
</script>
<style lang="less" scoped>
</style>
